/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
   
package org.apache.geode.internal.admin;

import org.apache.geode.admin.GemFireHealth;

/**
 * Interface for those who want to be alerted of a change in a GemFireVM's
 * health.
 *
 * @see org.apache.geode.admin.GemFireHealthConfig
 *
 * @since GemFire 3.5
 */
public interface HealthListener {

  /**
   * Called by a GemFireVM whenever a health status change is detected.
   *
   * @param member
   *        The member whose health has changed
   * @param status
   *        the new health status
   */
  public void healthChanged(GemFireVM member,
                            GemFireHealth.Health status);

}
